ADC Data Not Reflecting on CAN Transmission

schourasiya — Wed, 12 Nov 2025 11:13:06 GMT

I am currently working on ADC data acquisition using the CTU trigger and transmitting the sampled values over CAN using the MBDT environment on S32K344. However, even after following the standard configuration steps, the ADC values are still not reflecting on CAN.

Setup details:

ADC0 group triggered via CTU interrupt (Adc0_CtuDataOverrunNotification)
CAN Tx using Can_Write block (ID: 0x18FFFF00)
Both ADC and CAN work individually
ISR triggers, but ADC buffer values remain constant or zero during CAN Tx

Tried:

Rechecked. mex configuration and buffer mapping
Verified data type/packing
Called Adc_StartGroupConversion periodically
Still no data update on CAN

Please help identify what could be wrong or share a working CTU–ADC–CAN

Re: ADC Data Not Reflecting on CAN Transmission

schourasiya — Wed, 12 Nov 2025 11:17:38 GMT

Upon debugging, it is sure that the received ADC data is in the buffer, but the same buffer is not reflected in CAN or Either ADC resultant buffer.

topic ADC Data Not Reflecting on CAN Transmission in Model-Based Design Toolbox (MBDT)

ADC Data Not Reflecting on CAN Transmission

Re: ADC Data Not Reflecting on CAN Transmission